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Why is my dog drooling, mouth open, and in pain when drinking?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Female | spayed | 11 years and 2 months old | 6 lbs

Hello. My dog on 7/23/17 was fine one minute then she was drooling and had her bottom wide open twisting to her left in pain when she wld drink water or move her tongue at all. I was in the next room to find her but heard no fall or noise that wld make me think she fell or anything. On saturday my mother and i took Mimi to a Pet ER where they took the x ray atttched. After doing research i believe she may have trigeminal neuropathy she does not have pain in her face or back after the doctor exam

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1 Answer

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Answered By Jeffrey Milner

Veterinarian

Published on June 26th, 2017

Based on the clinical signs and the pictures you have provided, I think a trigeminal neuropathy is a distinct possibility. I don't agree with the assessment of the x-rays that there is any cervical disk compression, but that also be due to the fact that I am not viewing the radiographs as they are meant to be viewed. I cannot unfortunately zoom in or alter the contrast of the images. The one thing that does not add up with the diagnosis would be the pain associated with the movement. Traditionally, we do not see any extensive pain with this condition. Other possible causes of the the symptoms you are seeing are some sort of dental disease, primary nerve tumor, or other neuropathy of the face / head.

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